Do not eat memory even in case of an out-of-memory error.

src/interfaces/ecpg/ChangeLog

@@ -2386,6 +2386,10 @@ Fri, 10 Oct 2008 14:03:05 +0200
 Tue, 14 Oct 2008 11:25:51 +0200
 
 	- Fixed parameter parsing.
+
+Sat, 25 Oct 2008 16:34:28 +0200
+
+	- Free allocated memory even if the next alloc failed with ENOMEM.
 	- Set pgtypes library version to 3.1.
 	- Set compat library version to 3.1.
 	- Set ecpg library version to 6.2.

src/interfaces/ecpg/compatlib/informix.c

-/* $PostgreSQL: pgsql/src/interfaces/ecpg/compatlib/informix.c,v 1.55 2008/05/16 15:20:03 petere Exp $ */
+/* $PostgreSQL: pgsql/src/interfaces/ecpg/compatlib/informix.c,v 1.56 2008/11/01 08:55:21 meskes Exp $ */
 
 #define POSTGRES_ECPG_INTERNAL
 #include "postgres_fe.h"
@@ -755,10 +755,16 @@ rfmtlong(long lng_val, char *fmt, char *outbuf)
 				fmtchar = ' ';
 
 	temp = (char *) malloc(fmt_len + 1);
+	if (!temp)
+	{
+		errno = ENOMEM;
+		return -1;
+	}
 
 	/* put all info about the long in a struct */
-	if (!temp || initValue(lng_val) == -1)
+	if (initValue(lng_val) == -1)
 	{
+		free(temp);
 		errno = ENOMEM;
 		return -1;
 	}